Humans are few and far between since Earth was invaded by unseen extraterrestrial machines that harvest the planet's natural resources and relentlessly kill its inhabitants. In a remote part of the countryside, where starved humans have become as dangerous as the alien machines hovering in the sky, a feisty 19 year old girl, Sarah Connolly, sets out on a desperate attempt to fight back a group of bandits and defend her parents' farm, their remaining livestock, and the solar panels that keep them safe from extraterrestrials...